Quote:
Originally Posted by dwtaylorpdx
I just would never put a block back together without boiling it out.
I don't like pulling engines enough to do it multiple times.
Most machine shops will clean a block for well under 100 bucks if its fully stripped when you bring it in including all the freeze plugs, and all the threaded galley plugs for the oil galleys. An hour in the tank and your block is CLEAN!
Just me, I run em too hard not to feed them extra good... 
Dave |
I can appreciate this, for sure.
If I rebuild an engine completely, I take all precautions to make sure I won't have to do it again. That's not saying I won't do it again anyway, for the hell of it, but I won't
have to.
That said, one of my poor-house friends suggested doing what he does: Bathe the engine block and all associated parts in warmed coolant mixture (no more than 120-130 degF, he doesn't explain why, besides not burning yourself.) for a few hours.
I have personally seen how nicely coolant mixtures remove carbon from cylinders, so I can't imagine it wouldn't work to clean other surfaces. A straight steam bath also works, FWIW.